# NSN 4310-00-572-4386: Ring, Piston

NSN 4310-00-572-4386 (also written 4310005724386; NIIN 00-572-4386) is a ring, piston in Federal Supply Class 4310, Compressors and Vacuum Pumps. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4310-00-572-4386 (4310005724386)
- NIIN: 00-572-4386 (005724386)
- Item name: RING,PISTON
- Federal Supply Class: [FSC 4310 Compressors and Vacuum Pumps](https://nsnexplorer.com/fsc/4310/)
- Federal Supply Group: [FSG 43](https://nsnexplorer.com/group/43/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ACXF | RADIAL WALL THICKNESS | INCHES NOMINAL 0.1500 |
| MATT | MATERIAL | OVERALL STEEL |
| FEAT | SPECIAL FEATURES | INCLUDES 2 RING AND 1 EXPANDER,2.690 IN. OD BY 0.092 IN. THK BY 0.037 IN. WALL |
| ACXZ | STANDARD BORE DIAMETER | INCHES 3.001 |
| ADTE | JOINT STYLE | — |
| ACXJ | OVERALL WIDTH | INCHES NOMINAL 0.0460 |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| ACXD | RING STYLE | — |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S5529,17-7H |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1433-623747 | 09523 | PARKER-HANNIFIN CORPORATION DIV GAS TURBINE FUEL SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 1433-623747 | 45934 | ONTIC ENGINEERING & MANUFACTURING, INC DBA ONTIC US | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-01 | [SPE4A124G0043/SPE7M125F0871](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310005724386) | RING, PISTON | AAR SUPPLY CHAIN, INC DBA AAR DEFENSE SYSTEMS & LOGISTICS | $39,675.61 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4310005724386&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310005724386
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/4310-00-572-4386/
JSON: https://nsnexplorer.com/api/nsn/4310-00-572-4386.json